20042424022 has 4 divisors (see below), whose sum is σ = 30063636036. Its totient is φ = 10021212010.

The previous prime is 20042424011. The next prime is 20042424029. The reversal of 20042424022 is 22042424002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20042423984 and 20042424002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042424029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010606004 + ... + 5010606007.

It is an arithmetic number, because the mean of its divisors is an integer number (7515909009).

Almost surely, 2^20042424022 is an apocalyptic number.

20042424022 is a deficient number, since it is larger than the sum of its proper divisors (10021212014).

20042424022 is a wasteful number, since it uses less digits than its factorization.

20042424022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10021212013.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20042424022 its reverse (22042424002), we get a palindrome (42084848024).

The spelling of 20042424022 in words is "twenty billion, forty-two million, four hundred twenty-four thousand, twenty-two".